Water/CO2/Nitrous Intercooler Sprayer Question...

[Mahonroy]

Hello, was just thinking about intercooler sprayers and had a question. Just alone if I had my turbo setup running a certain way, lets say I dyno some number like 200, then I set up an intercooler sprayer, it seems like just from spraying the intercooler that I would dyno the same number? When the oxygen molecules enter the intercooler, there is basically a certain amount of molecules in there, but just making them cold seems all its going to do is lower pressure, but the same amount of molecules would still be there. It makes sence that if I am boosting 15psi and am on the verge of detonating due to intake temps too high (so at 16 psi it would detonate) then I have an intercooler sprayer (which again alone it doesn't seem to do anything) but it would allow me to turn the psi up a little without the intake temperature detonating the mixture...is this how it works or could someone explain to me? Thanks!

[FordFasteRR]

all it will do is reduce the temperature of the air charge...

an IC sprayer is not a detonation repair tool.. lol if your engine is detonating, fix that problem first,, then add the IC sprayer...

:)

[ricerrx7]

I have a friend with a GTI 1.8t with a front mount. He dyno'd 202hp and 250tq, then we sprayed the intercooler and got 250hp and 275tq.

[FordFasteRR]

I have a friend with a GTI 1.8t with a front mount. He dyno'd 202hp and 250tq, then we sprayed the intercooler and got 250hp and 275tq.

That is what happens when you reduce the air charge temps !! :)

LOL

[ricerrx7]

That's part of what he was asking about... :)

[Cypher]

those sprayers make a hell of a difference... when i was driving my friends evo when i was in florida you could tell the difference when you were holding the spray down or not.

[Dust]

Dropping the intake temps should drop your detonation, and allow more boost.

[Mahonroy]

So when they sprayed did the psi increase at all or it all stayed the same just more power because its colder? Were they spraying with water, CO2, or nitrous. I am assuming Nitrous is the most effective, then CO2, then water?

[ricerrx7]

I don't know the order of effectiveness, but we sprayed with N2O. I don't think anyone payed attention to the boost guage, so I'm not sure what happened with that.

[KeWLKaT]

Nice!

I am also going for this.

Mahonroy you suck :P lol

doing everything i plan on doing before me :(

[Mahonroy]

Nice!

I am also going for this.

Mahonroy you suck :P lol

doing everything i plan on doing before me :(

You planning on using CO2 or NO2 or water?

[KeWLKaT]

NO2.

It's the best way considering Nitrogen has the highest boiling point, and also, you can't just go and refill CO2 anywhere, as opposed to NO2 that you can find at many, many speedshops.

[ricerrx7]

(It's N2O. NO2 is an exhaust emmission...)

[KeWLKaT]

OMFG LOL I just realized. And yes I know what NO2 is, exhaust gasses emitted by engine produce NOx, etc.. etc..

Right right... N2O=Nitrous Oxide NO2=Nitric Dioxide

It was all Mahonroy's Fault :)

[Mahonroy]

Yup my bad lol

[Mahonroy]

One thing I noticed people talking about with the CO2 intercooler sprayers is that when the car isn't moving some of the CO2 goes into the intake and makes the engine bog, which makes sence oviously because CO2 is a flame retardent, and a by product of the exploded mixture. My air filter is in the fender well, so would this prevent CO2 going into the intake you think or is there still a decent chance that it goes in there(which the car is not moving). I know that when the car is driving there is no way CO2 would make its way into the intake over there.

[st_anger5532]

a c02 sprayer isnt praying into the intake its spraying straight onto the intercooler just cooling it off alot more and even icing it up sometimes. witch cools the air down alot. and C02 is VERY easy to find in colorado secialy in denver and fort collins.

[Mahonroy]

a c02 sprayer isnt praying into the intake its spraying straight onto the intercooler just cooling it off alot more and even icing it up sometimes. witch cools the air down alot. and C02 is VERY easy to find in colorado secialy in denver and fort collins.

I know this, I am talking about when you start spraying the intercooler, apparently some of the gas (this depends on where your air intake is I guess also, lots of people have the intake in the engine compartment) so some of the gas passes through the intercooler and radiator and then the intake sucks it right up afterwards bogging down the engine...

[dmdicks]

Water = Free, plus if you have a big enough resovoir you could put ice water in...still free... :-)

[st_anger5532]

if you are driveing the c02 disipates really fast and gets pushed under the car. one thing about it is you just cant have the intake RIGHT beside the intercooler or right behind it needs to be like a few inches 2 or 3 inches to either side of the intercooler or a bit above it and to the side.

o yea and if you use atter you wont cool the air in the intercooler much. if you use N2o you risk startting a fire if you spray for a few seconds and you get a bunch of gas under the hood and something sparks your ****ed. C02 is safe. cheap. easy to get. and works REALLY good.

[ricerrx7]

N2O isn't a fuel. The main reason that it works in the engine is because it adds more oxygen so you can add more gas. It won't cause anything to blow up under the hood.

[Mahonroy]

I am curious where you can get pressure sensative switches at? Is this something that you deffinetly have to order or can you get from a hardware/electronics store possibly?

[05xd]

Whoo hoo.Dead thread revival getting ready to happen.I have been thinking about this for a day or so now.My windshield washers are not hooked up at the moment so I was thinking about running the hose to the front of the car and getting a washer nozzle from a 08 Veracruz and spraying down the IC with h20/methanol.The reason I will pick a Veracruz nozzle is because it sprays in a fan shape area.This would only be temporary until I get a piggyback/standalone that will handle methanol injection beings there is no place around here that can tune the Uni-cheap for methanol injection,even though I was told it can be done.
Discuss

[Cypher]

interesting. I didn't know the veracruz nozzle was so different. If you try that be sure to let us know how it works out.

I think it'd work pretty good as a cooler, not spectcular but it'd work.

[05xd]

I figured as cool as it is running down my arm when putting washer pumps in,it should work nicely as a cooling agent.Would never be able to use it at the track though.No one wants to wait around while they dry and clean up that crap

[Cypher]

you could do it before you run and after but not during.

[05xd]

you could do it before you run and after but not during.

I wouldn't want to do it too soon before hand because of the drippage

[chris929]

funny i was just thinking about this last night too, but would it be dangerous to just spray washer fluid directly into the fmic without any form of tuning..?

[05xd]

No,onto it.Not in it
After the F/M then it will be injection

[KeWLKaT]

Why do people bother with meth injection?
Do you have detonation problems?
If not then why even bother?

[05xd]

More powaaah thats why.No detonation problems as of yet.I just want to test some things out

[chris929]

so would spraying the surface of the fmic(from the outside) act as an octane booster at all or just enhance cooling effect?

[Cypher]

enhance cooling.

[chris929]

so is there much cooling difference between spraying washer fluid versus ice water?

[dmdicks]

The methonal in most washer fluids will evaporate instantly when it hits the intercooler. This evaporation will take heat on the fins away. Water or ice water will just sit there and drip. You will get some cooling affect by the water cooling the external surface of the intercooler but without air flowing through it at the same time it won't do much. That's why methonal or N20 or even C02 works better, because they evaporate on contact.
Any if no detonation is happening spraying the intercooler will do nothing. The best way to increase power is to spray methonal into the air stream to actively cool the charge air and increase your octane points. Doing this will allow more timing advance which will create more power.

[KeWLKaT]

Just to make sure, you were talking about methanol, right?